diff --git a/CSharp/AuthorizationCodeFlow/packages.config b/CSharp/AuthorizationCodeFlow/packages.config
index c40adc5..ad5ca16 100644
--- a/CSharp/AuthorizationCodeFlow/packages.config
+++ b/CSharp/AuthorizationCodeFlow/packages.config
@@ -18,7 +18,7 @@
   <package id="Microsoft.Owin" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net452" />
-  <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net452" />
+  <package id="Microsoft.Owin.Security.Cookies" version="4.2.2" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.Facebook" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.Google" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.MicrosoftAccount" version="3.0.1" targetFramework="net452" />